Weather on May 4
Pittsburgh, PA
55 Years of Data
Avg High
66°F
Avg Low
48°F
Warmest
2001
73°F avg
Coldest
1973
42°F avg
About This Date
May 4th in Pittsburgh, PA typically brings mild spring weather, with average highs around 66°F and lows near 48°F. Over 43 years of records, the warmest May 4th was in 2001 (73°F average), while the coldest was 1973 (42°F) — a 31°F range across recorded history. Rain or other precipitation has occurred on about 42% of May 4th dates historically, with the wettest May 4th recording 2.49" of rain. The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
Planning for May 4th in Pittsburgh, PA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
2.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 69° | 56° | 62° | 0.64" | — |
| 2024 | 64° | 56° | 60° | 1.07" | — |
| 2023 | 59° | 44° | 52° | 0.03" | — |
| 2022 | 63° | 54° | 58° | 1.42" | — |
| 2021 | 75° | 60° | 68° | 0.15" | — |
| 2020 | 63° | 42° | 52° | — | — |
| 2019 | 68° | 57° | 63° | 0.28" | — |
| 2018 | 79° | 60° | 69° | 0.41" | — |
| 2017 | 66° | 48° | 57° | 0.08" | — |
| 2016 | 63° | 48° | 55° | 0.38" | — |
| 2015 | 81° | 51° | 66° | — | — |
| 2014 | 65° | 45° | 55° | — | — |
| 2013 | 71° | 46° | 59° | — | — |
| 2012 | 80° | 67° | 73° | — | — |
| 2011 | 50° | 42° | 46° | 0.05" | — |
| 2010 | 73° | 55° | 64° | — | — |
| 2009 | 54° | 50° | 52° | 2.49" | — |
| 2008 | 63° | 47° | 55° | — | — |
| 2007 | 73° | 48° | 61° | — | — |
| 2006 | 73° | 48° | 61° | — | — |
| 2005 | 58° | 35° | 46° | — | — |
| 2004 | 59° | 34° | 46° | — | — |
| 2003 | 65° | 50° | 57° | — | — |
| 2002 | 65° | 35° | 50° | — | — |
| 2001warmest | 86° | 59° | 73° | — | — |
| 2000 | 76° | 50° | 63° | — | — |
| 1999 | 79° | 53° | 66° | — | — |
| 1998 | 70° | 56° | 63° | 0.25" | — |
| 1997 | 62° | 45° | 53° | — | — |
| 1996 | 76° | 52° | 64° | — | — |
| 1995 | 62° | 46° | 54° | — | — |
| 1994 | 53° | 48° | 51° | — | — |
| 1993 | 71° | 60° | 66° | 0.13" | — |
| 1992 | 68° | 44° | 56° | — | — |
| 1979 | 53° | 40° | 46° | 0.1" | — |
| 1978 | 52° | 44° | 48° | 0.71" | — |
| 1977 | 69° | 56° | 62° | 1.14" | — |
| 1976 | 56° | 37° | 46° | — | — |
| 1975 | 59° | 54° | 56° | 0.1" | — |
| 1974 | 57° | 39° | 48° | — | — |
| 1973coldest | 47° | 38° | 42° | — | — |
| 1972 | 62° | 45° | 53° | 0.1" | — |
| 1971 | 61° | 34° | 47° | — | — |
43 years of data from PITTSBURGH WSO CITY